Made of polyurethane, ideal for water sports. Ergonomically shaped interior that adapts to the shape of the foot. Optimal grip thanks to the PVC sole. Sandal upper made of PU (polyurethane) with a foam underside for added comfort. Outsole made of PVC (polyvinyl chloride) with a relief pattern that provides optimal traction. Ergonomically shaped insole that wraps around the foot to keep it in place and better absorb shocks.